| Ostrhauderfehn to Oria | 989.94 mi (1,593.16 km) |
| Ostrhauderfehn to Oristano | 913.94 mi (1,470.84 km) |
| Ostrhauderfehn to Orta Nova | 897.20 mi (1,443.91 km) |
| Ostrhauderfehn to Orte | 768.42 mi (1,236.65 km) |
| Ostrhauderfehn to Ortona | 807.06 mi (1,298.84 km) |
| Ostrhauderfehn to Orvieto | 747.60 mi (1,203.15 km) |
| Ostrhauderfehn to Orzinuovi | 543.23 mi (874.25 km) |
| Ostrhauderfehn to Osimo | 717.55 mi (1,154.79 km) |
| Ostrhauderfehn to Ospitaletto | 533.94 mi (859.29 km) |
| Ostrhauderfehn to Ostuni | 974.23 mi (1,567.87 km) |
| Ostrhauderfehn to Ottaviano | 906.13 mi (1,458.27 km) |
| Ostrhauderfehn to Ovada | 587.59 mi (945.63 km) |
| Ostrhauderfehn to Ozieri | 868.30 mi (1,397.39 km) |
| Ostrhauderfehn to Paceco | 1,071.87 mi (1,725.01 km) |
| Ostrhauderfehn to Pachino | 1,189.24 mi (1,913.89 km) |
